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Related Experiment Videos

Microfluidic processing of synovial fluid for cytological analysis.

John C Krebs1,2, Yunus Alapan1,3, Barbara A Dennstedt4

  • 1Case Biomanufacturing and Microfabrication Laboratory, Mechanical and Aerospace Engineering Department, Case Western Reserve University, Cleveland, OH, USA.

Biomedical Microdevices
|April 4, 2017
PubMed
Summary

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A novel microfluidic platform, the Synovial Chip, enables standardized analysis of white blood cell (WBC) subpopulations in joint fluid. This cost-effective technology provides accurate results from small sample volumes for improved clinical diagnostics.

Area of Science:

  • Biomedical Engineering
  • Clinical Diagnostics
  • Fluidics

Background:

  • Synovial fluid analysis is crucial for joint health assessment but faces limitations in clinical practice.
  • Current methods lack standardization and require large sample volumes, hindering accurate diagnosis.
  • Limited availability of white blood cell (WBC) subpopulation data impacts clinical decision-making.

Purpose of the Study:

  • To develop a microfluidic platform for standardized, efficient, and cost-effective synovial fluid cytological analysis.
  • To enable simultaneous isolation and analysis of specific WBC subpopulations from small sample volumes.
  • To address the limitations of current synovial fluid diagnostic methods.

Main Methods:

  • Development of a microfluidic device (Synovial Chip) with antibody-functionalized channels.
Keywords:
Cell isolationJoint healthLab-on-a-chip systemsPoint-of-care testingWhite blood cells

Related Experiment Videos

  • Sequential capture of WBC subpopulations (CD4+, CD8+, CD66b+) from synovial fluid.
  • Optimization of cell capture efficiency by addressing sample viscosity using hyaluronidase treatment.

    • Main Results:

    • The Synovial Chip achieved high specificity (around 90%) for capturing target WBC subpopulations.
    • Hyaluronidase treatment improved cell capture efficiency from viscous synovial fluid samples to over 60%.
    • The platform demonstrated repeatable, cost- and time-efficient analysis from miniscule sample volumes (100 μL).

    Conclusions:

    • The Synovial Chip offers a standardized and efficient method for point-of-care synovial fluid analysis.
    • This technology facilitates the isolation and analysis of WBC subpopulations from limited sample volumes.
    • The platform has the potential to improve the accuracy and accessibility of joint disease diagnostics.